Read the viewing offer
The service, edition, plan and device determine available resolution. A 4K display does not make an older programme native 4K. Catalog artwork and ratings describe the title, not the video quality of every offer.
Motion and stability
Frame rate and compression matter when following sport. If a selected stream repeatedly stalls, try a lower supported quality and pause competing transfers. Change one thing at a time so you can tell what helped.
Finish the setup
Check sound and captions from your usual seat. Adaptive quality can change as the connection changes, so let it settle before making repeated adjustments. Playback help separates buffering from an account or region message.